not a lot of snow for the sierra nevada. it's a big trough with a lot of cold air coming by the middle day of the week. >> a roller coaster. thank you, lisa. >>> with unemployment still high, feeding the hungry is an ongoing challenge here in the bay area and elsewhere. it's a problem that grows more acute during the holidays. abc7 news reporter david loui checks in with second harvest food bank in the south bay. >>> social service agencies say long-term unemployment remains a problem in silicon valley and that's why you ten to see demands for food programs. second harvest food bank has set a goal to raise $12.4 million and collect two million pounds of food over the next three months. it helps to feed a quarter million people every month in santa clara and san mateo counties. these are volunteers to box up fresh produce. they partner with 300 agencies that in turn distribute the food at 740 locations across the two counties. cisco ceo, john chambers, said the company has been contributing to second harvest for 21 years. the